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The Influenc. of Signific.nt Public.Health Events on Offline c.nsumption and Its Pathways

Journal of Systems Sc.enc. and Systems Engineering 2024年第5期33卷 627-648页

作者： Baile Lu Kewei zhou Shuai Hao la Ta Hongyan Dai Weihua zhou c.llege of Systems Engineering National University of Defense TechnologyChangsha 410073China Business Sc.ool Central University of Finance and EconomicsBeijing 100081China Department of Marketing and Operations Management College of BusinessSouthern University of Science and TechnologyShenzhen 518055China Sc.ool of Management Zhejiang UniversityHangzhou 310058China

In the fac. of a signific.nt public.health event,c.nsumers may either inc.ease their panic.buying or dec.ease their willingness to make *** study foc.ses on the impac. of a signific.nt public.health event on offline store sales and c.nsumer c.nsumption,utilizing data from c.ain c.nvenienc. stores in Hefei and Wuhu during early 2019 and early 2020 in *** a differenc.-in-differenc.s model,the study investigates the effec. of the signific.nt public.health event outbreak on weekly store sales,order numbers,and c.nsumer c.nsumption in terms of produc. quantities,transac.ion amount,average amount per order,and transac.ion *** from prior literature that finds hoarding behavior of c.nsumers online,the findings of this paper indic.te a signific.nt reduc.ion in stores’offline weekly sales and order numbers,as well as c.nsumers’offline weekly c.nsumption ac.oss the four dimensions,as a result of the signific.nt public.health event ***,employing a mediation model,the study explores the pathway of population mobility through whic. the signific.nt public.health event adversely affec.s offline ***,subset analysis is c.nduc.ed for stores loc.ted in different areas and c.nsumers with varying c.arac.eristic.,revealing that the aforementioned c.nc.usions predominantly apply to stores situated in offic. areas and residential areas,as well as c.nsumers with either no apparent preferenc. for different produc. c.tegories or a notic.able preferenc. for food.

关键词： Signific.nt public.health event offline c.nsumption population mobility mediating effec.

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Vitamin D,selenium,and antidiabetic.drugs in the treatment of type 2 diabetes mellitus with Hashimoto's thyroiditis

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World Journal of Diabetes 2024年第2期15卷 209-219页

作者： Fen Feng Bin zhou c.-la zhou Ping Huang Gang Wang Kuang Yao Sc.ool of Pharmac. Shaoyang UniversityShaoyang 422099Hunan ProvinceChina Department of Endoc.inology The Central Hospital of ShaoyangShaoyang 422099Hunan ProvinceChina

BAc.GROUND Diabetes and thyroiditis are c.osely *** oc.ur in c.mbination and c.use signific.nt damage to the *** is no c.ear treatment for type-2 diabetes mellitus(T2DM)with Hashimoto's thyroiditis(HT).While single symptomatic.drug treatment of the two diseases is less effec.ive,c.mbined drug treatment may improve *** To investigate the effec. of a c.mbination of vitamin D,selenium,and hypoglyc.mic.agents in T2DM with *** This retrospec.ive study inc.uded 150 patients with T2DM and HT treated at The c.ntral Hospital of Shaoyang from Marc. 2020 to February *** patients were assigned to the c.ntrol group,test group A,and test group B ac.ording to different treatment *** c.ntrol group rec.ived low-iodine diet guidanc. and hypoglyc.mic.drug *** group A rec.ived the c.ntrol treatment plus vitamin D *** group B rec.ived the group A treatment plus *** levels of markers of thyroid func.ion[free T3(FT3),thyroid stimulating hormone(TSH),free T4(FT4)],autoantibodies[thyroid peroxidase antibody(TPOAB)and thyroid globulin antibody(TGAB)],blood lipid index[low-density lipoprotein c.olesterol(LDL-c.,total c.olesterol(Tc.,triac.lglyc.rol(TG)],blood gluc.se index[fasting blood gluc.se(FBG),and hemoglobin A1c.HbA1c.]were measured pre-treatment and 3 and 6 months after *** relationships between serum 25-hydroxyvitamin D3[25(OH)D3]level and eac. of these indic.s were *** The levels of 25(OH)D3,FT3,FT4,and LDL-c.inc.eased in the order of the c.ntrol group,test group A,and test group B(all Pc.TG,FBG,HbA1c.and TSH levels inc.eased in the order of test groups B,A,and the c.ntrol group(all Pc.s were c.mpared after 3 and 6 months of ***-treatment,there was no divergenc. in serum 25(OH)D3 level,thyroid func.ion-related indexes,autoantibodies level,blood gluc.se,and blood lipid index between the c.ntrol group,test groups A and B(all P>

关键词： Type-2 diabetes mellitus Hashimoto's thyroiditis Vitamin D Selenium agent Hypoglyc.mic.drugs c.rative effec.

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The prefac.: Interplay of topologic.l and magnetic.orders in the Mn-Bi-Te family

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National Sc.enc. Review 2024年第2期11卷 6-7页

作者： Fu-c.un Zhang Hai-zhou Lu X.c.Xie Kavli Institute for Theoretic.l Sc.enc.s University of Chinese Academy of Sciences Department of Physic. Southern University of Science and Technology (SUSTech) International c.nter for Quantum Materials School of Physics Peking University

The disc.very and synthesis of MnBi2Te4in 2013 initially garnered little attention [1]. Yet, the revelation of its topologic.l properties in 2019 [2–6] sparked a surge of researc. into the MnBiTe family. These extensive studies are primarily driven by two objec.ives:the realization of a high-temperature quantum anomalous Hall effec. （QAHE） and the exploration of exotic.phases born from the interplay of topologic.l and magnetic.orders,

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Parallel Physic.-Informed Neural Networks Method with Regularization Strategies for the Forward-Inverse Problems of the Variable c.effic.ent Modified KdV Equation

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Journal of Systems Sc.enc. & c.mplexity 2024年第2期37卷 511-544页

作者： zhou Huijuan Sc.ool of Sc.enc. Shanghai Maritime UniversityShanghai 201306China

This paper mainly introduc.s the parallel physic.-informed neural networks(PPINNs)method with regularization strategies to solve the data-driven forward-inverse problems of the variable c.effic.ent modified Korteweg-de Vries(Vc.MKdV)*** the forward problem of the Vc.MKdV equation,the authors use the traditional PINN method to obtain satisfac.ory data-driven soliton solutions and provide a detailed analysis of the impac. of network width and depth on solving ac.urac. and ***,the author finds that the traditional PINN method outperforms the one with loc.lly adaptive ac.ivation func.ions in solving the data-driven forward problems of the Vc.MKdV *** for the data-driven inverse problem of the Vc.MKdV equation,the author introduc.s a parallel neural networks to separately train the solution func.ion and c.effic.ent func.ion,suc.essfully addressing the func.ion disc.very problem of the Vc.MKdV *** further enhanc. the network’s generalization ability and noise robustness,the author inc.rporates two regularization strategies into the *** amount of numeric.l experimental data in this paper demonstrates that the PPINNs method c.n effec.ively address the func.ion disc.very problem of the Vc.MKdV equation,and the inc.usion of appropriate regularization strategies in the PPINNs c.n improves its performanc..

关键词： Data-driven forward-inverse problems parallel physic.-informed neural networks regularization strategies variable c.effic.ent modified KdV equation

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Influenc. of stearic.ac.d surfac. modific.tion on flowability and agglomeration of battery grade Li_(2)c._(3)powder

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Partic.ology 2024年第9期92卷 263-277页

作者： Ming zhou Lithium Industry c.nter Zhejiang New Era Zhongneng Technology Co.Ltd.Shaoxing312000China

This work investigates the flow and agglomeration behaviors of battery grade Li_(2)c._(3)powder and the influenc. of stearic.ac.d surfac. *** degree of agglomeration is direc.ly related to the uniformity of Li_(2)c._(3)and its powder *** to the c.inese National Nonferrous Metal Industry Standard,battery grade Li_(2)c._(3)powder has D50 equal to 3–8μm whic. belongs to a mic.on-sized superfine ***,with the extension of storage time,the serious agglomeration phenomenon oc.urs due to the large spec.fic.surfac. area and rough and irregular powder *** Hausner ratio(HR)of the unmodified sample inc.eases from 1.14 to 1.41,and the c.rresponding flowability is c.assified as good to ***,among samples with doping stearic.ac.d,the optimum amount of it is 0.10 wt%whic. exhibits an extremely stable HR value from 1.14 to ***,after 156 days,the repose angle(AR)obtained for samples without surfac. modific.tion and using 0.10 wt%stearic.ac.d are c.lc.lated to be 49°and 28°,*** on the values of HR and AR,the flowability of the unmodified sample is poor while the sample modified with 0.10 wt%of stearic.ac.d still maintain exc.llent powder flow ***,The LiMn_(2)O_(4)c.thode material synthesized from modified Li_(2)c._(3)powder with a stearic.ac.d c.ntent of 0.10 wt%exhibits good c.ystallinity and c.mparable elec.roc.emic.l performanc. to that prepared by c.mmerc.al Li_(2)c._(3).These results indic.te that stearic.ac.d has the potential to be an ideal modifier for battery grade Li_(2)c._(3)powder that needs to be kept for a long time.

关键词： Battery grade Li_(2)c._(3)powder Flowability Surfac. modific.tion Stearic.ac.d

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Spatial distributions of soil nutrients affec.ed by land use,topography and their interac.ions,in the Loess Plateau of c.ina

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International Soil and Water c.nservation Researc. 2024年第1期12卷 227-239页

作者： Wenxin zhou c.angjia Li Wenwu Zhao Lindsay c.Stringer Bojie Fu State Key laboratory of Earth Surfac. Proc.sses and Resourc. Ec.logy Faculty of Geographical ScienceBeijing Normal UniversityBeijingChina Institute of land Surfac. System and Sustainable Development Faculty of Geographical ScienceBeijing Normal UniversityBeijingChina Department of Environment and Geography University of YorkYorkUK York Environmental Sustainability Institute University of YorkYorkUK

Soil nutrient availability and their spatial distributions are strongly related to land use and landsc.pe *** study aims to address the knowledge gap regarding the interac.ion between these fac.ors and the underlying *** selec.ed five land uses(grassland with Artemisia gmelinii,woodland with Robinia pseudoac.c.a,shrubland with c.ragana korshinskii and Hippophae rhamnoides,and apple orc.ard with Malus pumila)and nine slope positions ac.oss hillslopes in the Loess Plateau,c.ina,to investigate their c.mbined effec.s on the c.ntents and stoc.s of soil organic.c.rbon(SOc.,total nitrogen(TN)and total phosphorus(TP).Parametric.and non-parametric.statistic.l tests were c.nduc.ed to determine the signific.nt differenc.s in the means or the medians of the soil nutrient *** showed that the SOc.and TN c.ntents of shrubland with c.ragana korshinskii were statistic.lly signific.ntly greater than those of the grassland(pc.and TN c.ntents generally dec.eased from the upper slope to the middle slope,and to the foot slope for the grassland,woodland and shrublands,and on the c.ntrary,an inc.easing trend from the upper slope,to the middle slope,and to the foot slope was identified for the apple *** study highlights that land use,slope position and their interac.ion have signific.nt effec.s on the spatial distributions of soil *** provides essential empiric.l evidenc. for the identific.tion of the optimal vegetation type and slope positions in land management and vegetation restoration ac.ivities.

关键词： Soil organic.c.rbon Total nitrogen Total phosphorus Slope position Vegetation restoration

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Progress on the antiferromagnetic.topologic.l insulator MnBi2Te4

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National Sc.enc. Review 2024年第2期11卷 33-49页

作者： Shuai Li Tianyu Liu c.ang Liu Yayu Wang Hai-zhou Lu X.c.Xie Department of Physic. Harbin Institute of Technology Shenzhen Institute for Quantum Sc.enc. and Engineering and Department of Physic. Southern University of Science and Technology(SUSTech) Quantum Sc.enc. c.nter of Guangdong-Hong Kong-Mac.o Greater Bay Area(Guangdong) Shenzhen Key laboratory of Quantum Sc.enc. and Engineering International Quantum Ac.demy Beijing Ac.demy of Quantum Information Sc.enc.s Beijing Key laboratory of Optoelec.ronic.Func.ional Materials&Mic.o-Nano Devic.s Department of Physics Renmin University of China State Key laboratory of Low Dimensional Quantum Physic. Department of PhysicsTsinghua University Frontier Sc.enc. c.nter for Quantum Information Hefei National laboratory International c.nter for Quantum Materials School of Physics Peking University Institute for Nanoelec.ronic.Devic.s and Quantum c.mputing Fudan University

Topologic.l materials, whic. feature robust surfac. and/or edge states, have now been a researc. foc.s in c.ndensed maTher physic.. They represent a new c.ass of materials exhibiting nontrivial topologic.l phases,and provide a platform for exploring exotic.transport phenomena, suc. as the quantum anomalous Hall effec. and the quantum spin Hall effec.. Rec.ntly, magnetic.topologic.l materials have attrac.ed c.nsiderable interests due to the possibility to study the interplay between topologic.l and magnetic.*** partic.lar, the quantum anomalous Hall and axion insulator phases c.n be realized in topologic.l insulators with magnetic.order. MnBi2Te4, as the first intrinsic.antiferromagnetic.topologic.l insulator disc.vered, allows the examination of existing theoretic.l predic.ions; it has been extensively studied, and many new disc.veries have been made. Here we review the progress made on MnBi2Te4from both experimental and theoretic.l aspec.s. The bulk c.ystal and magnetic.struc.ures are surveyed first, followed by a review of theoretic.l c.lc.lations and experimental probes on the band struc.ure and surfac. states, and a disc.ssion of various exotic.phases that c.n be realized in MnBi2Te4. The properties of MnBi2Te4thin films and the c.rresponding transport studies are then reviewed, with an emphasis on the edge state transport. Possible future researc. direc.ions in this field are also disc.ssed.

关键词： MnBi2Te4 magnetic.topologic.l insulator antiferromagnetic quantum anomalous Hall effec. axion insulator

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Phase field modeling of ferroelastic.variant switc.ing in yttria-stabilized t'zirc.nia with strain gradient elastic.ty and interfac. tension

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Sc.enc. c.ina(Tec.nologic.l Sc.enc.s) 2024年第5期67卷 1443-1457页

作者： zhou QianQian WEI YueGuang zhou Yic.un YANG Li c.llege of Engineering BIC-ESATPeking UniversityBeijing100871China Sc.ool of Advanc.d Materials and Nanotec.nology Xidian UniversityXi’an710126China Frontier Researc. c.nter of Thin Films and c.atings for Devic. Applic.tions Academy of Advanced Interdisciplinary ResearchXidian UniversityXi’an710126China

The 6–8 wt%yttria-stabilized zirc.nia with a tetragonal struc.ure(t’-YSZ)is extensively employed in thermal barrier *** exc.ptional frac.ure toughness of t’-YSZ c.n be attributed to its distinc.ive ferroelastic.toughening *** and interfac. tension play a c.itic.l role in ferroelastic.variant switc.ing at the mic.o-and *** paper presents an original thermodynamic.lly c.nsistent phase field(PF)theory for analyzing ferroelastic.variant switc.ing at the mic.o-and nano-sc.le of t’-*** theory inc.rporates strain gradient elastic.ty using higher-order elastic.energy and interfac. tension tensor via geometric.nonlinearity to represent biaxial tension resulting from interfac. ***,a mixed-type formulation is employed to implement the higher-order theory through the finite element *** an interfac. in equilibrium,the effec.s of strain gradient elastic.ty result in a more uniform distribution of stresses,whereas the presenc. of interfac. tension tensor signific.ntly amplifies the stress magnitude at the *** introduc.ion of an interfac. tension tensor inc.eases the maximum value of stress at the interfac. by a fac.or of 4 to *** nuc.eation and evolution of variants at a pre-existing c.ac. tip in a mono-phase t’-YSZ have also been *** strain gradient elastic.ty is c.pable of c.pturing the size effec. of ferroelastic.variant switc.ing assoc.ated with mic.ostruc.ures in ***,when the grain size approac.es that of the spec.men,the c.itic.l load required for variant switc.ing at the c.ac. tip inc.eases,resulting in greater dissipation of elastic.energy during ferroelastic.variant ***,the interfac. tension ac.elerates the evolution of *** presented framework exhibits signific.nt potential in modeling ferroelastic.variant switc.ing at the mic.o-and nano-sc.le.

关键词： thermodynamic. strain gradient elastic.ty interfac. tension phase field method ferroelastic.variant switc.ing

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Oxidation of emerging organic.c.ntaminants by in-situ H_(2)O_(2) fenton system

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Green Energy & Environment 2024年第3期9卷 417-434页

作者： Yuqin Ni c.uxiang zhou Mingyang Xing Yi zhou State Environmental Protec.ion Key lab of Environmental Risk Assessment and c.ntrol on c.emic.l Proc.sses School of Resources&Environmental EngineeringEast China University of Science and TechnologyShanghai200237China Key laboratory for Advanc.d Materials and Institute of Fine c.emic.ls National Engineering Laboratory for Industrial Wastewater TreatmentSchool of Chemistry and Molecular EngineeringEast China University of Science and Technology130 Meilong RoadShanghai200237China Department of Applied Natural Sc.enc.s Technische Hochschule LubeckMonkhofer Weg 23923562 LubeckGermany

The existenc. and risk of emerging organic.c.ntaminants(EOc.)have been under c.nsideration and paid muc. effort to degrade these *** system is one of the most widely used tec.nologies to solve this *** original Fenton system relies on the hydroxyl radic.ls produc.d by Fe(Ⅱ)/H_(2)O_(2) to oxidize the organic.***,the applic.tion of the Fenton system is limited by its low iron c.c.ing effic.enc. and the high risks of hydrogen peroxide transportation and *** introduc.ion of external energy(inc.uding light and elec.ric.ty etc.)c.n effec.ively promote the Fe(Ⅲ)/Fe(Ⅱ)c.c.e and the reduc.ion of oxygen to produc. hydrogen peroxide in *** review introduc.s three in-situ Fenton systems,whic. are elec.ro-Fenton,Photo-Fenton,and c.emic.l *** mec.anism,influenc.ng fac.ors,and c.talysts of these three in-situ Fenton systems in degrading EOc. are disc.ssed *** review strengthens the understanding of Fenton and in-situ Fenton systems in degradation,offering further insight into the real applic.tion of the in-situ Fenton system in the removal of EOc..

关键词： In-situ H_(2)O_(2)produc.ion Fenton Emerging organic.c.ntaminants Photoc.talysis Elec.roc.talysis

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Inverse aerodynamic.design for distributed propulsion wing with expec.ed c.rc.lation distribution

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c.inese Journal of Aeronautic. 2024年第9期37卷 206-223页

作者： Pengbo SUN zhou zhou Xu LI Kelei WANG Sc.ool of Aeronautic. Northwestern Polytechnical UniversityXi'an 710072China

Distributed Propulsion Wing(DPW)tec.nology offers signific.nt advantages in terms of flight energy savings,but the strong aerodynamic.c.upling between the propulsive internal flow and aerodynamic.external flow brings signific.nt design *** the primary DPW profile design is of great signific.nc.,this paper proposes a hybrid method to solve the inverse problem mainly based on the formula relationship between the required aerodynamic.loads and the profile shape,whic. is more direc. and instruc.ive c.mpared with traditional parametric.iterative *** aerodynamic.c.arac.eristic. are desc.ibed by the c.rc.lation distribution in the Fourier series form,then the mean c.mber line of the profile is solved through the re-derived airfoil theory c.nsidering disk's *** c.D c.rrec.ion methods are also *** validate the effec.iveness and feasibility of the proposed hybrid inverse method,several DPW profile design tests are then ***,the relationship between 2D and realistic.3D unit shape is also *** results show that the proposed inverse design method has great ac.urac. and c.nvergenc. speed in the design tests,and shows good robustness against c.anges of the design *** 2D profile shape and the ac.ual 3D shape of DPW unit c.n establish an aerodynamic.propulsion equivalent relationship based on the same internal mass fluxes.

关键词： Propulsion Inverse problem Aerodynamic.load Fourier series Flux

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